Take constant pressure supply water system of life area for example, this paper introduces the needs and realization of variable-frequence constant-pressure supply water system using PLC.

以生活区的恒压供水系统为例，介绍了应用PLC实现变频恒压供水系统的需求分析和实现过程。

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This paper selected Dongsheng as a sub-study area for example, conducted an impact analysis of driving factors of landscape pattern.

本文以子研究区——东胜为例进行了对影响景观格局动态变化的驱动因子的分析。

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First, you must create a DECS or LEI connection document to a relational database that you can use as a test area (for example, Microsoft Access).

首先，您必须创建一个指向某个关系数据库(例如，Microsoft Access)的DECS或LEI连接文档，您可以将这个数据库用作试验场。

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For example, in two thousand seven, doctors in the Washington area said a boy died when a tooth infection spread to his brain.

VOA: special.2009.03.11

For example,many tourists visit Kruger National Park in the northeastern area of South Africa.

VOA: special.2009.08.19

For example,many native languages in the Russian area of Siberia are threatened.

VOA: special.2009.12.02

There's lots of natural gas all over the world, but most of it is stranded, which means that for whatever reason--it's deep underwater or in a remote area, for example--it's not commercially exploitable.

FORBES

While New York initially paid farmers based on their land area, for example, the city now bases its payments on hydrological surveys.

FORBES: The $8 Billion Bargain: How Watershed Payments Save Cities, Support Farms And Combat Climate Change

Within the R160 controlled area, for example, they must fly above the River Thames, which minimises the risk of crashing into a built-up area.

BBC: London helicopter crash: What are the rules for pilots?